// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/test/mock_keyboard.h"

#include "base/logging.h"
#include "build/build_config.h"

namespace content {

MockKeyboard::MockKeyboard() { }

MockKeyboard::~MockKeyboard()
{
}

int MockKeyboard::GetCharacters(Layout layout,
    int key_code,
    Modifiers modifiers,
    std::wstring* output)
{
#if defined(OS_WIN)
    CHECK(output);
    // Change the keyboard layout only when we have to because it takes a lot of
    // time to load a keyboard-layout driver.
    // When we change the layout, we reset the modifier status to force updating
    // the keyboard status.
    if (layout != keyboard_layout_) {
        if (!driver_.SetLayout(layout))
            return -1;
        keyboard_layout_ = layout;
        keyboard_modifiers_ = INVALID;
    }

    // Update the keyboard states.
    if (modifiers != keyboard_modifiers_) {
        if (!driver_.SetModifiers(modifiers))
            return -1;
        keyboard_modifiers_ = modifiers;
    }

    // Retrieve Unicode characters associate with the key code.
    return driver_.GetCharacters(key_code, output);
#else
    NOTIMPLEMENTED();
    return -1;
#endif
}

} // namespace content
